rail detector car
常見例句
- A car carrying position sensitive detector(PSD) walked along rail and the parameters of the rail were obtained according to the spot position on PSD.
爲(wèi)解決大跨度軌道測量的難點(diǎn)，提出兩根軌道分別測量然後重?fù)k到同一個坐標(biāo)系中的方法。
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